SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
Test your basic knowledge |
DSST Physical Sciences Principles
Start Test
Study First
Subjects
:
dsst
,
science
Instructions:
Answer 31 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. At a given speed - the centripetal force - the smaller the circle.
Newtons first principle of Universal Gravitation
Third principle of Centripetal force
Twice the work
Movement
2. All objects with mass are attracted to another by the gravitational force
Disorder
Newtons first principle of Universal Gravitation
Second principle of Centripetal force
Newtons second principle of Universal Gravitation
3. The gravitational force - two masses are directly proportional to the mass of each object
Total internal energy of an object
Newtons second principle of Universal Gravitation
Newtons third principle of Universal Gravitation
Momentum
4. Electric power companies step up the voltage of generated power for transmission across the country because higher voltage...
Newtons second principle of Universal Gravitation
Halogen radicals interfering in ozone synthesis
First principle of Centripetal force
Means less power is transmitted
5. The theoretical production curve of oil indicates oil production is...
Halogen radicals interfering in ozone synthesis
Mechanical - chemical - and radiant energy
Near a maximum
Difference between the heat supplied and the heat exhausted
6. The work that a heat engine is able to accomplish is ideally equivalent to the
12 miles per hour
Disorder
Difference between the heat supplied and the heat exhausted
263 degrees kelvin
7. The gravitational force between two masses is inversely proportional to the square of the distance between those two objects.
Newtons third principle of Universal Gravitation
Might stay the same
Decreased
First principle of Centripetal force
8. The heat involved in the change of phase of phase from solid ice to liquid water is called...
Heat of fusion
Mechanical - chemical - and radiant energy
Halogen radicals interfering in ozone synthesis
Third principle of Centripetal force
9. In burning coal - what contaminant is of major concern as a pollutant...
Momentum
263 degrees kelvin
Mechanical - chemical - and radiant energy
Sulfur
10. In a generator - the flow of electrons (current) is created by...
Might stay the same
Less on the moon
Sulfur
Movement
11. Electromagnetic radiation can be viewed as...
Twice the work
Waves and particles
Second principle of Centripetal force
Remains unchanged
12. The larger the centripetal force - the faster an object travels in a circle of a given size
Second principle of Centripetal force
Mechanical - chemical - and radiant energy
Waste heat for secondary uses
Increases the energy
13. The weight of one kilogram of iron on earth is...
Total internal energy of an object
Less on the moon
Increases the energy
Mechanical - chemical - and radiant energy
14. A temperature of -10 degrees celsius is equivalent to...
Movement
12 miles per hour
263 degrees kelvin
Heat of fusion
15. Raising an auto in a service station requires work. Raising it twice as high requires...
Twice the work
Universal
Third principle of Centripetal force
Newtons second principle of Universal Gravitation
16. A ship travels 3 miles in 15 minutes what is its speed in miles per hour...
Waste heat for secondary uses
Increases the energy
263 degrees kelvin
12 miles per hour
17. From the 50's and to the 70's - the pH of rain in the northeast had..
Decreased
Second principle of Centripetal force
Newtons first principle of Universal Gravitation
Universal
18. Electrical energy can be converted to...
Might stay the same
263 degrees kelvin
Waste heat for secondary uses
Mechanical - chemical - and radiant energy
19. A 5 kg fish that is swimming toward it at a velocity that brings both fish to a halt. What is the speed of the smaller fish?
5 m/s
Total internal energy of an object
Less on the moon
First principle of Centripetal force
20. cogeneration uses...
Disorder
Waste heat for secondary uses
5 m/s
Decreased
21. If a charging elephant has kinetic energy - it must also have...
Momentum
Disorder
Mechanical - chemical - and radiant energy
Means less power is transmitted
22. Increasing the frequency of light
Increases the energy
Decreased
Might stay the same
Less on the moon
23. Heat is the...
Total internal energy of an object
Halogen radicals interfering in ozone synthesis
Decreased
First principle of Centripetal force
24. Which is not one of the fundamental forces of nature...
First principle of Centripetal force
Universal
Momentum
Near a maximum
25. If the mass of a cart full of groceries decreases of half and its speed doubles - the momentum of the cart...
Decreased
Halogen radicals interfering in ozone synthesis
Remains unchanged
Might stay the same
26. The ozone hole results from...
Decreased
Sulfur
Means less power is transmitted
Halogen radicals interfering in ozone synthesis
27. Circular motion requires centripetal force
First principle of Centripetal force
Second principle of Centripetal force
Increasing speed and constant acceleration
Waste heat for secondary uses
28. The reason that a spear fisherman cannot see where the fish is actually located is...
Difference in the sped of light in water vs. air
Newtons third principle of Universal Gravitation
Universal
Twice the work
29. When you add heat to a substance - its temperature...
Might stay the same
Momentum
Halogen radicals interfering in ozone synthesis
Waves and particles
30. Neglecting air resistance - a ball in free fall near the earth's surface will have...
Means less power is transmitted
Difference between the heat supplied and the heat exhausted
Increasing speed and constant acceleration
Disorder
31. Entropy refers to...
Less on the moon
Newtons third principle of Universal Gravitation
Total internal energy of an object
Disorder